| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.sl.TZ1.3 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | Derive | Question number | 3 | Adapted from | N/A |
Question
What is the whole number ratio of the coefficients of ammonia to oxygen when the following equation is balanced correctly?
___\({\text{N}}{{\text{H}}_3}{\text{(g)}} + \)___\({{\text{O}}_2}{\text{(g)}} \to \) ___\({\text{NO(g)}} + \)___\({{\text{H}}_2}{\text{O(l)}}\)
A. 1 : 2
B. 2 : 1
C. 4 : 5
D. 5 : 4
Markscheme
C
Examiners report
[N/A]
Syllabus sections
Core » Topic 1: Stoichiometric relationships » 1.1 Introduction to the particulate nature of matter and chemical change
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